Compilare: main.cpp: In function 'void dfs(int)': main.cpp:23:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | for (int i = 0; i < adj[node].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void biconex(int, int)': main.cpp:41:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for (int i = 0; i < adj[node].size(); ++i) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:93:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 93 | for (i = 0; i < echipe.size(); ++i) | ~~^~~~~~~~~~~~~~~ main.cpp:108:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 108 | for (i = 0; i < vul.size(); ++i) | ~~^~~~~~~~~~~~ main.cpp:74:18: warning: unused variable 'j' [-Wunused-variable] 74 | int n, m, i, j, x, y; | ^